2.1 Portfolio details via dashboard

If you’re hoping to use your WordPress.com site to show off your portfolio separate from your blog posts and pages, the Portfolio content type will let you manage all your portfolio projects in one place. It also gives you a number of different ways to display them on your site.

To Create a new detail Portfolio please move to Portfolio/Add New in
the Dashboard

Then scroll down and select the style for your Portfolio. All Portfolio styles

Portfolio Options:

1) Select style for the gallery - Here you can select the style of the gallery.